Conveying-trough.



H. ROTH.

CONVEYING TROUGH.

APPLICATION FILED MAY 2, 1910.

1,022,332. Patented Apr. 2, 1912.

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CONVEYING TROUGH.

APPLIUATION FILED MAY z. 1910.

1,022,332. Patented Apr. 2, 1912.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

HUGO ROTH, 0F BRUNSWICK, GERMANY, ASSIGNOR T0 AIMME, GIESECKE & KONEGEN,

AKTIENGESELLSCHAFT, BRAUNSCHWEIG, 0F BRUNSWICK, GERMANY, A CORPORA- TION 0F GERMANY.

CONVEYING-TROUGH.

Speoioatlon of Letters Patent.

Application led May 2, 1910. Serial No. 558,990.

To all rwhom t may concern:

Be it known that I, Huoo ROTH, a subject of the Emperor' of Germany, residing at Brunswick, Duchy of Brunswick, Emplre of Germany, have lnvented certain new and useful Improvements in Conveying-Troughs7 of which the following is a specification.

This invention relates to improvements in conveying troughs which have a recipro-l A paratively small.

of aconveying'trou'gh. Fig. 2, is a'side` With this object in Vview the invention consists in constructing the feeding trough in'such a way, that it is movable relatively to its driving mechanism, for which purpose the said trough is connected with theA driving mechanism through the intermediary of rockingv levers, which may either be constructed lin the manner of hangers or in the formtof rocking pillars supporting the trough at their upper ends. 'As is known in t-he art, by ,reversing the direction of the movement of the conveying trough which is done rather suddenly, considerable 'stress` is exerted on the driving mechanism, and the lsaid stress is considerably. reduced in the, improved construction. Furthermore by usino' rocking `arms. for supporting the trough the stroke of the trough is comparatively large while fthe stroke of the driving mechanism is small. For the purpose ofexplaining the invention three examples lembodying the same have been shownffin the accompanying drawings in which the same letters of refer-V ence-have been used in all the views to indicate corresponding parts.. v

In said drawings-'Figure `1, 1s aside view view of a modification of the same. Fig.'3, is atdetail view,partly in section,of a buifer for reversingthe trouglrat the end of its stroke. 1 Fig.` 3 lis a' vsectional det-ail view of an element which is employed in the buffer construction shown in F 1g. 3. Fig. 4 is a sectional View showing an alternative device .for adjusting the buffer shown in Fig. Fig. 5 is a view showing an adj ustable piston rod pivot connection which may be provided for the buffer shown in Fig. 3. Fig. 6 is a sectional view showing an adjustable mounting for the c linder of the buil'er shown in Fig. 3. Fig. is a sectional view showing an adjustable connection for the piston of the buffer shown in Fig. 3. Fig. 8 is a sectional view of a telescopic piston rod construction for the buffer shown in Fig. 3, and Fig. 9 is an elevation of a further modified construction of trough suspension means.

Referring to the example of the invention illustrated in Fig. l, the upper part of the improved conveying trough is in its form similar to the conveying troughs as heretofore constructed. As shown a reciprocatory beam a is suspended from a sultable support by means of rods or hangers Z2, b, and it is connected to a suitable driving mechanism by means of a connecting rod e in such a way that it is elevated on its forward stroke which takes place in the direction of the arrow while it is lowered upon its return stroke. As shown the driving" mechanism consists of a crank disk c to which the connecting rod e is jointed, and which is rotated by means of a pulley f driven from a suitable source of energy by a belt g or the like. The beam a is equipped with a member d which is movable relativel thereto and which is constructed in the orm of a trough. As shown the connection between the beam a and the trough d is effected by means of hangers or arms /L which at their upper ends are jointed to pivots z' of the bar a. The material to be fed by the trough d may be supplied thereto by means of a funnel o.

Insteadlof constructing the rods It in the form o'f`hangers by means of whichthe trough d is suspended `from the beam ya, they may be constructed vas rocking pillars, by means of which the trough d is disposed above the beam' a. Such an arrangement trough d2 is supported at the upperends lis shown in Fig. 9,' wherein the conveying of rocking pillars h2, being pivoted to said 'I pillars or llnks. The latter, at their lower ends, are pivoted to the reciprocating beam a2, which is connected to the driving mechanism bythe link e and is supported by the hangers b, as in the 4construction of lFlg. The swinging movement of the pillars h2 1s limited, for example, by stops las, suitably arranged on the beam a2.

by rails Z, so that the beam has a rectilinear movement. rlhe conveying operation is effected by .means or' a buffer m which is mounted on a relatively fixed part oi the mechanism or on the floor n of the building. Against the lat-ter the trou h d is thrown, said trough being suspende. from the beam a by means of hangers or links it winch are pivoted to said beam so as to have free swinging movement With respect thereto., rlhe trough is equipped witha head 0 which strikes against the buii'er m at the end of the forward stroke of the trough d', while the latter has an unimpeded swinging'rn'ovement when moving in the opposite direction. ln the varrangement shown the method of mounting the trough on the beam ais advantageous in this respect, that the shock caused by the buer m does not react on the driving mechanism.

Fig. 3 shows a part of a modification of the conveying trough on an enlarged scale.. As shown the trough is provided with' a bu`er construction which is particularly useful in the improved apparatus. To a pivot ip of the trough d2 a piston rod p is jointed which at its opposite end carries a piston p2. Upon the reciprocating move-- ment of the trough d2 the said piston reciprocates within a cylinder g which has 'a support on a bracket r mounted on a block 1', so that the cylinder can rock about its pivot g in a `vertical direction. The inner wall of the cylinder is formed over a part of its length with axial grooves g2. Whilethe piston moves Within the part of the cylinder which is -provided with Athe grooves g2 it is not aii'ected by the air inclosed within the cylinder because the said air can iiow from one side of the piston to the opposite one through the grooves g2. But when the piston passes into the portion of thecylinder gi/which is not provided with grooves g2 it compresses the air inclosed therein so that 0 the said compressed air forms an e'ectlve buifer for arresting and reversing the movement of the trough d2. In order to increase the action of the buiier a plunger s is inclosed within the rear portion of the cylinder which is provided with a screw-threaded spindle .s2 projecting throu h the head g8 of the cylinder and provide at its outer end with a hand Wheel s by means of which the plunger s can be axially adjusted within the cylinder q. The hand Wheel may either be fixed to the spindle s2, -in which case the latter is guided in an internally screwthreaded bore .S5 of the cylinder head g8, or as .shown in Fig. ll, the hubs4 of the hand Wheel s is provided with internal screw-threads and connected to the cylinder head g3 by means of claws s or the like. By means of the .hand wheel the piston s can be adjusted within the cylinder g, so that the size ci' the air chamber of the cylinder and thereby the action of the ment at which the bud'er acts the pivot p threaded bore e5 of the cylinder head g8,

of the piston rod p may be made adjustable relatively to the trough d2 for which purpose the pivot v is shifted,/as shown in Fig. 5, in a longitu inal slot uf of a block u carrying the said pivot. Another means consists in making the pivots g of the cylinder adjustable longitudinally of the feeding stroke of the gutter, for which purpose the bracket r', as shown in Fig. 6, is made shiftable on the block r in a clamping plate r2 having dovetailed borders r3 between which the bracket r can be clampedby means of a wedge r4. .v For the same purpose of making the pivots g adjustable these pivots g" may be formed on a ring which is clamped in the cylinder g by means of clamping screws a', as is shown in Figs. 3 and 3". A further means consists in adjusting the piston p2 on its piston rod p, for example by means of a screw and nut connection (Fig. 7). Finally the moment at whichl the buffer action takes place may be changed by varying the length of the piston rod, for which purpose the said piston rod may be constructed of a plurality of telescoping sections (Fig. 8), which are rigidly connected by meansof a screw?, or two sections which are connected with each .other by means of a sleeve p3 having right and left internal screw threads, as shown in Fig. 3.

Claims:

1. The combination with a conveying trough of a reciprocating driving mechanism for the same and freely swinging links pivotally pendant from the driving mechanism and pivotally connected to and supporting the trough, the links providing for ree reciprocatin movement of the trough with relation to the driving mechanism.

2. The combination with a conveying trough of a driving mechanism for the same which includes a reciprocatory beam, and freely swinging links pivotally pendant from the beam and pivotally connected to and supporting the trough, the links providing for free reciprocatin movement of the trough with relation to t e beam.

3. The combination with a. conveying trough of a driving mechanism for the same, which includes a reciprocating beam, and freely swinging bars pivotally connected to the beam and to the trough, the swinging movement of the bars being consequent to the reciprocating movement of the beam and providing for free reci rocating movement of the trough with relation tothe beam.

4. The combination with a conveying trough of a reciprocating driving mechanism for the same, freely swinging links pivotally pendant from the driving mechanism andpivotally connected to and supportingthe trough and means to arrest and cushion the feeding movement of the trough near the end of its stroke.

5. The combination with a conveying trough, of a driving mechanism for the same, which includes a reci rocating beam, freely swinging bars pivota y connected to the beam and to the-trough, the swinging movement of the bars being consequent to the reciprocating movement of the beam and providing for free reciprocating movements of the trough with relation to the beam,

and means to arrest and cushion the feeding movement of the trough nearl the end of its stroke.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses. 'v

HUGO ROTH.

Witnesses KARL MuNn'r, WILHELM LEHRKE. 

